main.cpp

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// ======================================================================
//  main.cpp
// ======================================================================
//                   This file is a part of the book 
//             "Qt 5.10 Professional programming with C++"
//                       http://qt-book.com
// ======================================================================
//  Copyright (c) 2017 by Max Schlee
// ======================================================================

#include <QtWidgets>

// ----------------------------------------------------------------------
int main(int argc, char** argv)
{
    QApplication app(argc, argv);

    QSplitter  spl(Qt::Vertical);
    QTextEdit* ptxt1 = new QTextEdit;
    QTextEdit* ptxt2 = new QTextEdit;
    spl.addWidget(ptxt1);
    spl.addWidget(ptxt2);

    ptxt1->setPlainText("Line1\n"
                        "Line2\n"
                        "Line3\n"
                        "Line4\n"
                        "Line5\n"
                        "Line6\n"
                        "Line7\n"
                       );
    ptxt2->setPlainText(ptxt1->toPlainText());

    spl.resize(200, 220);
    spl.show();

    return app.exec();
}